Top layered floor insulation in kitchen - under cabs?

[Gooman]

The ground floors in our new home are concrete, built in the 1970s and so assumed to have no insulation. So we're looking at top-layered insulation options. VIPs if we can afford it, otherwise Celotex.

 

In the kitchen, will we need to insulate under where the kitchen cabinets will go? Could save a good bit of money there if not.

[PeterW]

You will end up dropping the worktop height if you don’t lift the kitchen as the worktops will be lower by the insulation and floor depth

[Gooman]

We'd aim to raise the cabinets by the same amount, but not necessarily using the same material. If we go for VIPs, this could save us £400.

 

We'd probably just have small chocks for each cabinet leg, with the same height at the insulation.

[ProDave]

Having insulated the visible floor with the expensive stuff to get the minimum floor raise, why not insulate under the cabinets with as much PIR as you can fit in. It doesn't matter if that ends up higher (as long as not higher than the cabinet legs obviously)